NEESR-SD: Development of a Real-Time Multi-Site Hybrid Testing Tool for NEES

该奖项是NSF 08-519计划征集小乔治·E·布朗的成果。地震工程模拟(NEES)研究网络(NEESR)竞赛。该项目将利用利哈伊大学和伊利诺伊大学厄巴纳-香槟分校的NEES设备场地。NEESR-SD项目的目标是开发、检查、实施和演示强大而准确的同步控制工具，这些工具能够在NEES框架内进行实时、多站点实验和模拟测试。进行实时、多地点实验和模拟测试的能力将使NEES充分发挥其作为不同设备地点的分布式网络的潜力。在多个NEES设备地点之间进行地理上分散的实时测试将不仅使具有独特实验和模拟能力的不同NEES实验设施参与进来，而且这样做还将使整个地震工程界具有不同背景的利益攸关方聚集在一起。这种创新的测试技术将允许实现更大、更复杂的实验，并提供以前无法获得的动态加载条件的实验信息。该项目将开发实施实时、多地点实验所需的模拟控制算法，并检查这些算法对网络延迟以及测量噪声和模型参数的可变性和不确定性的敏感性。计划使用小规模系统进行一系列测试，以开发和检查概念，并通过完全物理振动台测试来验证这些方法。将开发一个基于NEES实时数据查看器(RDV)的用户界面工具，以促进进行多站点混合测试。将在全尺寸NEES设备上进行大规模、实时、多地点的实验，以演示这些方法在NEES网络中的应用。将开发一个获取小规模和大规模测试的实际测试数据的互联网教育和外联工具，以向更广泛的社区展示在这项研究中开发的工具和方法。在项目结束时，将在LeHigh NEES设施举办一次培训讲习班，通过NEES和结构控制社区内的混合测试，促进NEES设施的分散使用。结果将通过NEES网络基础设施传播，包括NEESCentral、NEESforge和RDV。

This award is an outcome of the NSF 08-519 program solicitation George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) Research (NEESR) competition. This project will utilize the NEES equipment sites at Lehigh University and the University of Illinois at Urbana-Champaign. The goal of this NEESR-SD project is to develop, examine, implement, and demonstrate robust and accurate synchronization control tools that provide the capability to conduct real-time, multi-site experiment and simulation tests within the NEES framework. The ability to conduct real-time, multi-site experiments and simulation tests will allow NEES to reach its full potential as a distributed network of diverse equipment sites. Geographically-distributed, real-time testing between multiple NEES equipment sites will engage not just the diverse NEES experimental facilities, all with unique experimental and simulation capabilities, but in doing so will also bring together stakeholders with diverse backgrounds throughout earthquake engineering community. This innovative test technique will allow for larger and more complex experiments to be realized and provide experimental information from dynamic loading conditions previously not available. The project will develop simulation control algorithms necessary to implement real-time, multi-site experiments and examine the sensitivities of these algorithms to network delays, as well as measurement noise and variability and uncertainty in model parameters. A series of tests are planned using a small-scale system to develop and examine concepts and validate these methods with a fully physical shake table test. A user interface tool, based on the NEES Real-time Data Viewer (RDV), will be developed to facilitate conducting multi-site hybrid tests. Large-scale, real-time, multi-site experiments on full-scale NEES equipment will be conducted to demonstrate the application of these methods within the NEES network. An Internet-based education and outreach tool that accesses actual test data from the small-scale and large-scale tests will be developed to demonstrate the tools and methodologies developed within this research to the greater community. A training workshop will be held at the Lehigh NEES facility at the end of the project to promote the distributed use of NEES facilities through hybrid testing within both the NEES and the structural control communities. The results will be disseminated through NEES cyberinfrastructure, including NEEScentral, NEESforge and RDV.